Today's edition (9th March) of Manx Independent carries the news of the the engineering base being closed on page 3.
It covers the whole BA/Flybe thing and reports how the announcement of the direct SOU link sounded good but when pax rang to book - the Flybe call centre did not know about the route and it was not on their system - despite having been publicy announced. So it sounds like SOP for British management.
The SOU route is said to be bookable from this weekend and start 25 March. They also mention, again, "New routes to EDI, GLA, NWI and EXE could follow". LTN is not mentioned and note could follow, so that sounds like marketing speak.